Rear camera off-center - Samsung Galaxy S7 Questions and Answers

Probably a silly question. But I want to know whether the lens's position cause any effect on OIS when it's being completely off-centered as signified by the red circle in the image attached.
Thanks

I don't think it is a problem. If there is no black edges on screen when taking pictures, everything is fine.
And to see if OIS is turning on, just shake your phone (with camera off) and you can hear camera moving . Go to the camera app and shake again, you will not hear the camera moving. It means OIS is on.
Sent from my SM-G930F using XDA-Developers mobile app

goTouch said:
I don't think it is a problem. If there is no black edges on screen when taking pictures, everything is fine.
And to see if OIS is turning on, just shake your phone (with camera off) and you can hear camera moving . Go to the camera app and shake again, you will not hear the camera moving. It means OIS is on.
Sent from my SM-G930F using XDA-Developers mobile app
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I didn't mean whether the OIS will work or not, what I meant was whether the off-center will have any effect on OIS's working resulting in a bit more shaky video relatively?

Turn your phone around and it's centered.
Your welcome

ginodp said:
Turn your phone around and it's centered.
Your welcome
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I don't think so. I say this based upon my examination of the eight S7's I've possessed so far. Turning any one of them upside down appeared to merely cause an optical illusion. The illusion was that, if the back camera lens seemed off-center when right side up, flipping the device 180 degrees simply made it appear that the relative lens position had changed, often then seeming more centered.
If you look carefully at your S7's back lens (a magnifier helps), you can easily see that the lens itself is considerably recessed beneath the surface. That is, it is set back below the protective surface glass and the surrounding circular port opening. This means that when you look at the lens straight on, a crescent shadow is cast around a portion of the lens. And that makes it only appear to become more centered or more off-centered. The crescent shadow will change position depending upon the direction of your back lighting. You can hold your S7 facing its back panel, look at the lens, and pivot around in a circle to change the direction of the back lighting. You should notice the illusion of the lens moving from one side to the other as the back lighting becomes oblique from the opposite direction. A similar thing will occur when you turn the phone upside down.
Out of the eight S7's I've possessed, only one of them had a near perfectly centered back camera lens. As long as no portion of the lens is overlapped by the circular port opening, there should be no performance loss with the camera function. As stated, an off-centered back camera lens is actually only the position of the internally mounted camera module as relative to the external circular port opening. And the movement illusion is the shadow crescent moving around. The OIS movement should be so minimal that it will be undetectable in terms of how centered the lens appears to be.

Meher458 said:
Probably a silly question. But I want to know whether the lens's position cause any effect on OIS when it's being completely off-centered as signified by the red circle in the image attached.
Thanks
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Hi there.
I just got my S7 Edge today which seems to have the same misaligned camera and circular cover.
Did you notice any effect this has?

Related

Rear camera distortion

Just noticed that when things are in the top portion of the picture with the camera tilted down slightly things get distorted. It makes heads oblong and alien looking. Wondering if other people have this same issue or if it's just my phone. So it's really a question of whether the phone is being exchanged or returned.
I've attached two pics. When the tv is in the top portion of the pic it looks a lot taller than when it's in the center of the pic. Both pics were taken from the same distance at the same zoom amount.
Did you take the plastic film off the lens that comes from the factory?
s197 said:
Did you take the plastic film off the lens that comes from the factory?
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I was gonna say the same! Although mine lately has not been focusing at all unless i shake it. View is immediately blurry, but up close to something it is fine. Like it is stuck in close up. Shake it and seems good. This is before ROOT and playing around. Any ideas?
s197 said:
Did you take the plastic film off the lens that comes from the factory?
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Did you have a plastic film on your camera? I had one over the fingerprint sensor but if there is one on my camera it's near impossible to detect, I feel like I'm just scratching at the glass although my fingernail is definitely catching on something. I just cant tell if it's the edge of the glass for the camera or a film covering it.
i had the same issue so i boiled my kettle, and held the phone above it after it boiled and let the steam peel the lense sticker.
omgi0wn said:
Did you have a plastic film on your camera? I had one over the fingerprint sensor but if there is one on my camera it's near impossible to detect, I feel like I'm just scratching at the glass although my fingernail is definitely catching on something. I just cant tell if it's the edge of the glass for the camera or a film covering it.
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If you had the plastic on it, you'd know it. It was very noticeable on mine.
droidiac13 said:
If you had the plastic on it, you'd know it. It was very noticeable on mine.
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I really can't tell if it's there, if it is it lines up almost perfectly. It isn't causing me issues for now though so I'm not going to mess with it.
omgi0wn said:
I really can't tell if it's there, if it is it lines up almost perfectly. It isn't causing me issues for now though so I'm not going to mess with it.
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You would notice in the center of the lens. The plastic would have a cut. Once it's off, the lens is perfectly flat across the top.
The plastic was still on, but no change in distortion taking it off. I'm guessing the cutout in the center of the plastic makes it so it doesn't impact photos.
So I tested on my computer monitor and am able to somewhat replicate what is happening in your shots. However, this distortion is natural because you're tilting the camera downwards on its axis. Its called perspective lens distortion and is common to all cameras without a tilt shift lens (a lens that costs several thousand dollars). You should be able to replicate the effect with any camera phone.
Yeah I've noticed distortion in other cameras but it's just not so extreme. On the s6 the distortion makes any pics with the subject on the edge ridiculous and unusable.
I think I've narrowed it down to when the s6 is set up to shoot max resolution at 16:9. When I switch it to 4:3 the distortion is pretty much gone since that distorted area is just cropped out but that reduces it from 16mp to 12mp. Other phone cameras I've had (moto x 2nd gen and s3) crop the other way (max resolution at 4:3 and then crop to get 16:9).
So the s6 presumably has a 16:9 sensor where the others had 4:3. But the extra width is pretty much unusable.
I'm not sure how I feel about this. What's the point of having a 16mp camera if you can only effectively use 12mp?
Any update on this? I was hoping there's a post processing software in Android/Windows/OSX that can compensate for the lens distortion even though it'll reduced the resolution a bit. I have a AT&T Galaxy S6.
I tried DXO Optics Pro 8, and it works very good for shots from my Nikon D7000 to un-alienize the faces, but there are no modules for the Galaxy S6 lens.

Do these selfie cameras change your face?

Am I losing my mind or do most camera phones do this? When I take a selfie and put my face at the top of the screen it seems to throw my face out of proportion. Makes my head and eyes big and my jaw area look small. When I put myself at the very bottom it makes my jaw area and cheeks seem elongated and bigger.
I think I'm right about this because once I was taking selfies with this girl and i centered my face in the screen. She was a lot shorter than me so her face ended up at the bottom and her face and head looked huge and elongated and she had me take another. This time I centered her face but then mine was at the very top and I looked horrible. The 3rd attempt I just put it in landscape mode and held it far, centered us both and we both looked normal... At least I hope I did.
Im feeling anxiety and depressed about this bcuz I feel like I don't know how I really look.
Sent from my SM-G920V using XDA Free mobile app
It's the fisheye effect, common in many very wide angle lenses. The further the subject gets from center, the more distorted it becomes. If you want to see how pronounced it is with any camera, take a picture of graph paper filling the lens.

Dark blobs in camera?

Sometimes in low indoor lighting I noticed some dark blobs that appear on the camera. They look like rather large particles scattered throughout the frame. I was suspecting maybe dust in the lens but I've seen a similar thing with my friend's Nexus 4 when is directly cast in sunlight - similar to when you look under a microscope and your hair eyelashes are in the way. Another thing I suspect it could be is some interference from the shiny black plastic ring within the camera lens (not the silver ring outside), as it appears to be made of a rough plastic-like material.
Sample (there are many more depending what angle the light is shining): https://www.dropbox.com/s/zm8h9jp3jhdy726/DSC_0476.JPG?dl=0
Has anyone experienced this as well?
Note that the lens/camera module that was replaced by Sony in Taiwan due to the left blur problem. They assured me that the phone was still waterproof. Unfortunately I am no longer in Taiwan so I can't get it repaired. In most situations the blobs are not visible but I do notice them when I'm filming in my room and the camera appears to be trying to pick up more light.
hmm, now that i look at my lens, i it appears there is a spot on the actual camera lens behind the main lens cover. Either dust got in during the lens replacement process, or it somehow got in later. So much for IP68 =/
Can you send it back and get a new device?
Lambo16 said:
Can you send it back and get a new device?
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Nope, I bought it in Taiwan, and am studying overseas now. Perhaps next time I go to Taiwan I will turn it in. It's not a huge problem as none of my outdoor photos seem to have this problem - I only noticed it in videos I filmed in my room indoors with a certain lighting or flare (if you cover the light a bit it's gone, like you have a lens hood). It's not as obvious as previous reports of dust in the Xperia Z lens etc.
I looked into it with a magnifying glass and it does seem like there is at least one speck behind the lens cover.
Maybe there was some dust or paper in my pocket that somehow got in, but I had the phone in a case, and there's a rear protector film I applied that goes around the lens

Something moving inside the phone

A few days ago I noticed this weird rattling noise when I shake my phone, as if something inside is moving. I thought maybe the home button was wobbly, so I held the home button firmly and the noise is still there. I managed to hold all the buttons to prevent them from moving and shook the phone, but there's still something rattling inside it. I think it's the camera since if I take a closer look, it doesn't look like it's completely straight.
Also, when I launch the camera app, there are minor 'lags' when I move the phone, also it takes longer to focus now and sometimes doesn't focus at all.
Any idea if the rattling inside is the camera lens or lens cover or is it something else?
G920F (64GB)
Sapphire Black
No warranty
Bought from shady guy on the street
It's the camera. Because the rear camera has OIS (Optical Image Stabilization) sensor. While you don't use the camera, the lens is going to move arroung where it is. But if you turn on the rear camera and shake your phone you'll stop hearing because OIS is working
sentinelvdx said:
It's the camera. Because the rear camera has OIS (Optical Image Stabilization) sensor. While you don't use the camera, the lens is going to move arroung where it is. But if you turn on the rear camera and shake your phone you'll stop hearing because OIS is working
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I was worried about the same thing. Is it normal?
ratnodip said:
I was worried about the same thing. Is it normal?
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It's normal, don't worry. Once you star the rear camera, the magnets of the OIS will activate and if you shake it you won't hear that until you switch of the camera again.

Camera Placement

I just applied a back protector from imak. It's a wet applied protector so I've spent more time looking closely at the back of my phone than previously.
Specifically the camera area and I noticed my camera module doesn't sit in the center of the glass circle. There is actually a void at the top of the black around the lens itself.
I'm going to try to get some pics but curious if anyone else sees this on their device. I haven't noticed any issues with photos but I'm not sure if it's always been like this or if this has slowly progressed to this location and will become a problem in the future.
Just curious.
Thanks.
Edit:
After reviewing it further, laying it flat on a surface so the phone is in the horizontal position centers it in the glass.
When phone is in vertical position, any orientation the lens is moved. I assume it's related to camera hardware (gyroscope or something I think I read about?) But it is still concerning how off center it is. Just hope it's always been like that and isn't slowly deteriorating.
Sent from my HTC U11 using XDA-Developers Legacy app
Nope, mine is dead centre and does not move at all.
Beamed in by telepathy
It's the Optical image stabilization module that makes the lens move when you tilt the phone in certain positions, nothing wrong mate.

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